Patent No. 5888187 Implantable microphone
Patent No. 5888187
Implantable microphone (Jaeger, et al., Mar 30, 1999)
Abstract
The present invention is directed to methods for amplifying vocal (i.e., speech) and other sounds produced by humans and other animals. The present invention provides implantable microphones and sound amplification systems suitable for use in diagnostic and research settings, as well as for use by subject's in need of assistance to vocalize.
Notes:
SUMMARY
OF THE INVENTION
The present invention relates to the field of devices and methods for improving
sound production and amplification in vocally impaired persons and particularly
to the field of implantable microphones. The present invention also provides
devices and methods for improving sound production and amplification suitable
for diagnostic purposes.
The present invention provides two-stage implantable microphone devices and
methods for their use. In one embodiment, the implantable microphone of the
present invention has stages that allow selection of the microphone frequency
response and sensitivity. The implantable microphones of the present invention
provide excellent audio characteristics and are very thin, making them particularly
suited for implantation.
In one embodiment, the present invention provides an implantable microphone
device comprising a housing, including a diaphragm, the housing and diaphragm
enclosing a chamber; a microphone coupled to the housing; and a vent connecting
the microphone to the chamber, so that vibrations of the diaphragm are transmitted
through the chamber and vent to the microphone. In a preferred embodiment, the
transducer in the microphone is an electret microphone. In other embodiments,
the transducer is piezo or electromagnetic. Thus, it is not intended that the
present invention be limited to any particular transducer included within the
microphone.
In an alternative embodiment, the present invention provides an implantable
microphone device comprising, a housing, including a diaphragm, the housing
and diaphragm enclosing a chamber; an acoustic resistor between the diaphragm
and an opposing surface of the housing; a microphone coupled to the housing;
and a vent connecting the microphone to the chamber, so that vibrations of the
diaphragm are transmitted through the chamber and vent to the transducer.
In yet another embodiment, the present invention provides an implantable microphone
device comprising a housing, including a diaphragm, the housing and diaphragm
enclosing a chamber; a microphone coupled to the housing; and a vent connecting
the microphone to the chamber so that vibrations of the diaphragm are transmitted
through the chamber and vent to a surface of the microphone.
In a further embodiment, the present invention provides an implantable microphone
device, comprising a housing, including a diaphragm having a plurality of bellows,
the housing and diaphragm enclosing a chamber; an acoustic resistor between
the diaphragm and an opposing surface of the housing; a microphone coupled to
the housing; and a vent connecting the microphone to the chamber so that vibrations
of the diaphragm are transmitted through the chamber and vent to the microphone.
The present invention also provides methods for amplifying speech comprising
the steps of providing a subject, and an implantable microphone for producing
an electronic signal responsive to the subject's vocalizations; and implanting
the implantable microphone within the subject.
In one embodiment of the method of the present invention, the method comprises
the step of providing a subject, an implanted microphone for producing an electronic
signal responsive to the subject's vocalizations, an amplifying means for amplifying
the electronic signal to produce an amplified signal, and a broadcasting means
for broadcasting the amplified signal to produce a broadcasted signal.
In an alternative embodiment ,the amplifying means further comprises a filtering
means. In yet another embodiment, the amplifying means further comprises a processing
means. In a preferred embodiment, the method of the present invention further
comprises a modulating means, wherein the amplified signal is modulated; and
a demodulating means, wherein the broadcasted signal is demodulated. It is contemplated
that the modulated signal is selected from the group consisting of AM, FM, and
bass band. In an alternative preferred embodiment, the broadcasting means is
comprised of a transmitter coil, a receiving coil, an amplifier, and at least
one speaker. In a particularly preferred embodiment, the transmitter coil is
implanted within the subject, and the receiving coil may be external or surgically
implanted Within the subject.
In some embodiments, the speaker is a room speaker, while in others, the speaker
is a personal speaker. In preferred embodiments of the method as it is used
to assist vocally-impaired subjects, implantable microphone is implanted in
close proximity to the subject's vocal cords. In particularly preferred embodiments,
the implanted microphone is hermetically sealed.
The present invention also provides methods for monitoring body function, comprising
the step of: providing a subject, an implantable microphone for producing an
electronic signal responsive to the subject's body functions, and implanting
the microphone within the subject.
In preferred embodiment, the methods for monitoring body function, comprising
the step of: providing a subject, an implantable microphone for producing an
electronic signal responsive to the subject's body functions, an amplifying
means for amplifying the electronic signal to produce an amplified signal, and
a broadcasting means for broadcasting the amplified signal to produce a broadcasted
signal; implanting the implanted microphone within the subject; and monitoring
the implanted microphone.
In one embodiment, the amplifying means further comprises a filtering means.
In alternative embodiments, the amplifying means further comprises a processing
means. In preferred embodiments, the method further comprises a modulating means,
wherein the amplified signal is modulated; and a demodulating means, wherein
the broadcasted signal is demodulated. It is contemplated that various modulated
signals will be used in the present invention, including but not limited to
the group consisting of FM, AM, and bass band. In alternatively preferred embodiments,
the broadcasting means is comprised of a transmitter coil, a receiving coil,
an amplifier, and at least one speaker. In particularly preferred embodiments,
the transmitter coil is implanted within the subject, and the receiving coil
may be external or implanted within the subject. In an alternative embodiment,
the speaker is a room speaker, while in other alternative embodiments, the speaker
is a personal speaker. In particularly preferred embodiments, the broadcasted
signal is recorded.
It is contemplated that the method of the present invention will be used to
monitor various body functions, including, but not limited to heart rate, respiration,
and intestinal movement. It is further contemplated that the present invention
will be used for diagnostic purposes, to determine whether a subject is suffering
from disease or any other pathological condition.
It is further contemplated that the subject be human, although it is also contemplated
that the present invention will be used with non-human animals for monitoring,
as well as diagnostic purposes.
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From
the above, it is clear that the present invention provides and methods for the
use of preparation of implantable microphones effective in the amplification
of voice and other sounds. All publications and patents mentioned in the above
specification are herein incorporated by reference. Various modifications and
variations of the described method and system of the invention will be apparent
to those skilled in the art without departing from the scope and spirit of the
invention.
Comments